Local businesses in the Seattle/Tacoma area have pulled together to donate their time and services for the Lakewood PD officers memorial today. Costco, Sysco, and Food Services of America have donated food for officers’ family members. Culinary students are volunteering to cater receptions for mourners. An estimated 20,000 officers will be attendance — and thousands more members of the public will line the streets:

The memorial for four slain Lakewood police officers is expected to pack the Tacoma Dome on Tuesday afternoon, drawing delegations from police forces as far away as New York.

A three-hour procession of about 2,000 emergency vehicles, including the families’ motorcade and cars from the Lakewood Police Department, will leave for the arena from McChord Air Force Base on Tuesday morning. An estimated 20,000 law enforcement officers are expected to attend the ceremony, with thousands of members of the public at remote sites where the service will be broadcast and along the procession route.

The memorial service comes just over a week after the officers were gunned down in a coffee shop before the start of their shift.